1. E. Fermi, “Quantum theory of radiation,” Rev. Mod. Phys. 4, 87–132 (1932).
2. “I am reminded how much trouble Fermi had … in his 1932 RMP article on QED with … the velocity of light problem” — W. E. Lamb, Jr., private communication.
3. P. W. Milonni, D. F. V. James, and H. Fearn, “Photodetection and causality in quantum optics,” Phys. Rev. A52, 1525–1537 (1995) and references therein
4. N. Herbert, “FLASH—A superluminal communicator based upon a new type of quantum measurement,” Found. Phys. 12, 1171–1179 (1982)
5. P. W. Milonni and M. L. Hardies, “Photons cannot always be replicated,” Phys. Lett. A92, 321–322 (1982).